Slides in this set

Slide 1

Slide 2

Newly Planted Forests = Net Absorbers· Younger trees grow more rapidly, turning the carbon dioxide into wood. There is little old wood, and only small amounts of decay, meaning respiration gives out less carbon dioxide then is being taken in for photosynthesis.· This means the system is a net absorber of carbon dioxide.…read more

Slide 3

Older Forests = Carbon Store· As the forest gets older, the system will become more balanced. There will be a state of equilibrium between the absorption through photosynthesis and emission of carbon dioxide through respiration in the forest.· The forest will become a carbon store with carbon locked in the biomass.…read more

Slide 4

Why are the worlds forests limited inthe amount of carbon dioxide they can absorb?· With the increased carbon dioxide concentrations and higher temperatures, the forests will soak up extra carbon dioxide for a sort period of time.· This is because with the increased growth of plantations, there is more food, meaning more animals. This would lead to an increase of decay- causing microbes, leading to more respiration and a higher output of carbon dioxide.· Space is also a limiting factor.…read more

Slide 5

What effect would temperature have on carbon dioxide levels?· Recently there has been a suggestion that an increase by about 5C or 6C in the worlds average temperature could lead to a decrease in water available to rainforests.· This would cause a decline in growth and forests and cause an increase in global carbon dioxide emissions.…read more

Slide 6

Strategies to reduce carbon dioxide in our atmosphere:· Improving energy efficiency· Using less fossil fuels, replacing them with more sustainable resources· Capturing carbon dioxide and putting it in the oceans so microscopic algae in the ocean can incorporate it into biomass, meaning the ocean can act like a carbon sink.…read more